Gas range cooker



FIG. 1 is a top, right front perspective view of a gas range cooker showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a left side elevational view, the right side elevational view being a mirror image thereof.

The structure depicted with broken lines in the FIG. 2 view has been shown for the purpose of illustrating a portion of the claimed gas range cooker that forms no part of the claimed design. 

CLAIM The ornamental design for a gas range cooker, as shown and described. 